AppleLanguages也給我了語言環境，如果我只想知道語言

Question

如何輸出en_GB，需要en。

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 
NSArray *languages = [defaults objectForKey:@"AppleLanguages"]; 
NSString *currentLanguage = [languages objectAtIndex:0]; 
NSLog(@"%@", currentLanguage); 

Answer 1

NSArray *arrayOfSeperatedString = [currentLanguage componentsSeparatedByString:@"_"]; 
NSLog(@"%@", [arrayOfSeperatedString objectAtIndex:0]); 

編輯：

一個更好的辦法是：

NSLocale *currentLocale = [[[NSLocale alloc] initWithLocaleIdentifier:currentLanguage] autorelease]; //Sets the what laguage the language name and country name should be written in 
NSString *displayNameString = [currentLocale displayNameForKey:NSLocaleIdentifier value:currentLocale]; //Sets what language you want written.. 

NSLog(@"The current language is: %@", displayNameString); 

現在，如果當前的語言是法語（fr_FR時）這將返回：

The current language is: français (France) 

如果當前語言是英語（EN_US）這將返回

The current language is: English (United States) 

現在，如果你想ommit國名使用componentsSeperatedByString:@" ("如上所述..